Using CartoDB to analyze OpenStreetMap data

Analyzing OpenStreetMap using CartoDB

Sunday, October 14, 12

Senior scientist and developer @vizzualityFind me @andrewxhill


User, developer, and pusher of limits @cartodbFind me @andrewxhill


blog.cartodb.comSunday, October 14, 12

So tell me already,What is CartoDB?


CartoDB is a tool to build applications and master your geospatial data


Importing OSM data into CartoDB it’s sooooo easy


We support directly importing OSM and other formats too!

shp, csv, kml, etc


CartoDB uses osm2pgsql it keeps it simple


1 OSM file becomes 4 CartoDB tables

1. Points2. Polygons3. Roads4. Linestrings


Import local data from .org or mirror simple drag-drop support on most browsers


Or! Import directly from URL www.openstreetmap.org


From here the sky is the limit combine SQL, CartoCSS, and APIs with ease


no. seriously.


SQLremember. it’s everywhere


EMBEDsql is everywhere


SQL APIsql is everywhere


youraccount/osmtable/11/1022/679.png

youraccount/osmtable/11/1022/679.png?yada WHERE rail


CREATIVITYsql is everywhere


not for me


http://goo.gl/orkoqSunday, October 14, 12

http://goo.gl/orkoq

http://goo.gl/orkoq

CLIENT SIDELeaflet, Google Maps, Backbone, D3


ORmore practical things


INNOVATIONthey don’t let us sleep...


_I want to see ‘X’ over timeusing the SQL API with big data


WITH hgrid AS (SELECT Cdb_rectanglegrid(Cdb_xyz_extent(8, 12, 5), Cdb_xyz_resolution(5) * 4, Cdb_xyz_resolution(5) * 4) AS cell) SELECT x, y, Array_agg(c) vals, Array_agg(d) dates FROM (SELECT St_xmax(hgrid.cell) x, St_ymax(hgrid.cell) y, Count(i.cartodb_id) c, Floor(( Date_part('epoch', built) -‐ -‐10418716800 ) / 32837875) d FROM hgrid, us_po_offices i WHERE St_intersects(i.the_geom_webmercator, hgrid.cell) GROUP BY hgrid.cell, Floor(( Date_part('epoch', built) -‐ -‐10418716800 ) / 32837875) ) f GROUP BY x, y


1

10

100

1000

3mb 70mb 300mb1.5

21.2

300

70

3

Raw Datacube

Payload sizesSunday, October 14, 12

http://goo.gl/TsGsr


http://goo.gl/TsGsr

http://goo.gl/TsGsr

https://dl.dropbox.com/u/580074/osm_edits_in_madrid.mov




That’s CartoDB + OpenStreetMap in a nutshell come talk to me, I’m sure I missed much more


xº


Thanks!@andrewxhill


Using CartoDB to analyze OpenStreetMap data

Technology

Transcript of Using CartoDB to analyze OpenStreetMap data